Questions Asked on
December 4, 2009

calculus
A man launches his boat from point A on a bank of a straight river, 3 km wide, and wants to reach point B, 2 km downstream on the opposite bank, as quickly as possible. He could row his boat directly across the river to point C and then run to B, or he
asked by Avilene 
biology
You have isolated the genome from a novel virus and would like to determine its composition. you have three tubes, each containing one of these substance: 1. a protein that degrades double stranded DNA (DNase, tube 1) 2. a protein that degrades single
asked by Anonymous 
Literature
Need help with this: 'Explain how rhyme, rhythm, and other sound effect such as alliteration, assonance, and onomatopoeia, can contribute to a poem's mood. Support your ideas with examples from the two poems 'American Hero' and 'The Gift' Thanks MC
asked by mysterychicken 
Chemistry
A solid metal is often known as having 'an array of positive ions in a sea of electrons'. Write down the electronic structure of magnesium atom and use it to explain what this phrase means. Actually I don't know how to explain it. So I need you to explain
asked by Eman 
physic
A sensitive gravimeter at a mountain observatory finds that the freefall acceleration is 7.00×10^3 m/s^2 less than that at sea level. What is the observatory's altitude?
asked by peggy 
PSYCHOLOGY
Harold sees his coworkers as inconsiderate, unsupportive, and lazy. He hates his job. what would u say Two Possible Moderators of Stress could be
asked by scooby 
Science
The number of organisms of the same species living within the total area of their entire habitats is best known as... A. Population size B. Ecological desity C. Crude density D. None of the above
asked by Kaled 
physics
a 5 kg object placed on a frictionless,horizontal table is connected to a string that passes over a pulley and then is fastened to a hanging 9kg objct.find the acceleration of the two objcts and the tension in the string
asked by latifah 
math
2. Mrs. young has her 18 students seated in a circle. They are evenly spaced and numbered in order. which student is directly opposite these three students? .student#1? .student#5? .student#18?
asked by afo 
Physics?
Hi this question is beyond me, so any help = great. A useful instrument for evaluating fibromyalgia and triggerpoint tenderness is the Doloriometer or Algorimeter. This device consists of a force meter attached to a circular probe that is pressed against
asked by Tony 
Physics
I am having some trouble with some questions and need some help. A neutron with a mass of 1.68 x10(27) exponent kg moves from a nuclear reactor with a velocity of 3.22 x10 (3) exponent m/s. What is the Broglie wavelength? Also, I need to write tge
asked by Doly V 
Math
A passenger car will go 429 miles on 16.5 gallons of gas in city driving.What is the rate in miles per gallon?
asked by Janet 
home economics
what are ten careers in home economics
asked by dj 
matha
why did zorna pour ketchup on her brother's hand
asked by engelica 
Science
Which group of plants have nitrogen fixing bacteria in their root nodules? A. Grass. B. Phytoplankton. C. Legumes. D. Seaweeds.
asked by Kaled 
math
4x^2+4x=3 solve by completing the square
asked by kaitlin 
math
terry shared three pizzas with some friends. terry ate 1/4 of them. how much pizza did terry eat?
asked by Kris 
Organic Chemistry
How can I relate cis, trans cyclohexane to enantiomer pairs, diastereomers, and meso stereoisomers?
asked by Cerise 
economics
The table shows the relationship for a hypothetical firm between its advertising expenditures and the quantity of its output that it expects it can sell at a fixed price of $5 per unit. Advertising Quantity Sold at P = $5/IN Expenditures (millions)
asked by Anonymous 
Math word problem
A small circular pool is enclosed in a square. Find the area inside the square but outside the circle? (of the shaded region). There is a picture of a square, which is shaded, around a circle. The circle is touching all four sides of the square and there
asked by Lyndse 
Economics/Math
3. Assume you own a painting. If you sold it now, you could get £500 for it. However, the amount that people will be willing to pay in the future increases by £25 in odd years (including the first one) and by £26 in even years, for the next 53 years. If
asked by Susan 
Calculus
Suppose a cylindrical can is manufactured with radius r. The manufacturing process makes the length r imprecise; r can be off by ±0.03 cm. The manufacturing process makes the height of the can precisely equal to three times the radius r (including any
asked by Steven 
Management
Jane is an editor for a large company. Jane performs most of her work at home and visits the office twice a week to attend meetings. Jane is a. utilizing flexible time, b. telecommuting, c. parttime employee, d. a temporary employee.
asked by marilia 
computer
ObjectOriented Data and Processes • Identify a task you perform regularly, such as cooking, mowing the lawn, or driving a car. • Write a short, structured design (pseudocode only) that accomplishes this task. • Think about this task in an
asked by john 
Statistics
"Children from single family homes are more successful on standardized tests" What would the null hypothesis be?
asked by Linda 
physics
Two masses are attached to an Atwood machine. the mass of block A is 12.3kg and the mass of B is 4.2kg. the pulley is massless but has kinetic friction of 16N. The blocks are released from rest, what is the acceleration of the system
asked by kelly 
hca 249
An interviewee named Mattie has been telling you all about her sister. Mattie’s sister is a delicate, 72yearold greatgrandmother. She recently had an ultrasound that revealed an aneurysm near her heart. Mattie’s sister did not understand the
asked by trudy 
Science/Math
In a population being studied over a limit of time, four eggs hacth, six birds leave the area, three are eaten by cats, and five move into the area. What is the population change over the period of study? A. An increase of 2 birds. B. A decrease of 4
asked by Kaled 
physical science
How much time should be allowed for a 392km car trip if the car will be traveling at 120 km/h?
asked by sandy 
Business Maths
Please show me how to calculate this problem: During 2007, Sitter Corporation reported net sales of $2,000,000, net income of $1,200,000, and depreciation expense of $100,000. Sitter also beginning total asset of $1,000,000, ending total asset of
asked by Peaches 
Geometry
Triangle ABC has vertices A = (0,6) B = (2,3), and C = (2,1). Find the coordinates of its vertices if it is translated by the equations: x' = x  4, y' = y 3
asked by Lenora 
physics
In movies like “Speed”, hidden ramps are used to make seemingly impossible jumps across open spaces. Suppose a vehicle, say a bus (8500 kg), drives up a ramp such that it leaves the ramp with Vi = 30.0 m/s (about 67 mph) at an angle of 20.0o. What is
asked by Alex 
health care
What are the main purpose of ambulatory care?
asked by mary 
childcare
The formation of children's core values is most strongly influenced by a peers. B family. C elementary school teacher. D child care providers. The correct answer for me is B
asked by Rosa 
physics
Find the resultant force of a 32N force pulling horizontally on a wooden crate and a 20N force pulling at an angle of 49 degrees upward of horizontal. (Your answer should include magnitude and direction of the force)
asked by Jade 
11th grade
I really need assistance in starting a project that is due in 2 weeks. I basically need to create a gravitypowered vehicle that will go travel down a ramp, go across the floor 1 meter away and hit a wall. The catch is that there will be a "passenger" (an
asked by Kayla 
spanish 2
How do you say ways to get around in spanish and directions around the city
asked by jaz 
Chemistry
5 liters of Butane gas (C4H10) is reacted with plenty of oxygen at 27 oC and 1 atm to produce carbon dioxide and water vapor. Calculate the following: 1 The volume of CO2 produced at 1 atm and 400 oC. 2 The mass of H2O vapor produced. 3 The mol % of the
asked by Steve 
Physics
Hi I tried asking this question yesterday but still had some confusion.Since the area must be in cm^2. IP The weight of your 1440 kg car is supported equally by its four tires, each inflated to a gauge pressure of 30.0 lb/in^2 . What is the area of contact
asked by Elizabeth 
Mythology
What is hell the equivalent to in Celtic mythology?
asked by Janet or Miss Jackson 
statistics
An athlete suspected of having used steroids is given two tests that operate independently of each other. Test A has probability 0.91 of being positive if steroids have been used. Test B has probability 0.77 of being positive if steroids have been used.
asked by Anonymous 
english
im a bit confused of what could be the conclusion behind the following lines written by Melville in his LETTER TO NATHANIEL HAWTHORNE, JUNE 1851. the lines are: A: “So the product is a final hash, and all my books are botches.” is this mean that no one
asked by bindiya farswani 
English
I was wondering if you could help me find literary devices in this passage in "Othello" by Shakespeare: Desdemona: "My noble father, I do perceive here a divided duty: To you I am bound for life and education; My life and education both do learn me How to
asked by Aaron 
Physics PLEASE!!
A Ushaped tube is filled mostly with water, but some vegetable oil has been added to both sides of the U tube. On the right side of the tube, the depth of oil is 5.00 cm . On the left side of the tube, the depth of the oil is 2.30 cm. The density of the
asked by Jim 
Chemistry
I am having a lot of trouble understanding acidbase reactions. I was able to struggle through most of the homework, but I'm not usre about these questions. 1) Can an acidic solution be made less acidic by adding an acidic solution? 2) Pennies manufactured
asked by Mary 
Calculus
Silly question here, but I am not getting a certain part in the solution in a problem. Evaluate the integral of [(sin(ln(39x)))/x]dx. We are supposed to take u=ln(39x), and get du=(1/x)dx, and the then whole thing is simply solved using integration
asked by O_o Rion 
Math
If the odds in favor of an event A are 3 to 1, what is the probability associated with event A occurring?
asked by Kate 
medical terminoolgy
describe the appraoch for body cavities
asked by sue 
math
whats a perimeter?
asked by Anonymous 
french
What does Revellion mean?
asked by Barbara 
math
lisa studies 9 hrs. for a test and gets a score of 72. at this rate, how many hrs. would she have had to study to get a score of 92?
asked by Janet 
Math
A passenger car will go 429 miles on 16.5 gallons of gas in city driving.What is the rate in miles per gallon?
asked by Janet 
math
1. A farmer had several pens out by the barn. He had used 17 lenghts of fence to make the pens, but now he needs to use six of those fence lengths for another project. He wants to remove six fence lenghts but still have two square pens remaing. Which
asked by fko 
Automotive engine parts and operation
plz help me w/ the answers i have n tell me if i'm wrong. 1. An automotive engine's camshaft rotates at A. the same speed as the crankshaft B. onequarter the speed of the crankshaft C. onehalf the speed of the crankshaft D. twice the speed of the
asked by Nessa 
math
Simplify each of the following, if possible. Write your answers in the exponential form ab. (a) 24 • 25 • 28 (b) 34 + 2 • 34 (c) 250 • 250
asked by student 
Smallpox
How did smallpox affect the lives of people in the 19th century? Please help thanks
asked by JLJS 
Physics
what is the mass of hydrogen peroixide, H2O2, in 350 grams ofa 20% by weight solution?
asked by Doly V 
Accounting
A company incurs a cost for a part which is needed to repair a piece of equipment. Is the cost an asset or an expense? Explain.
asked by Ralph 
summoner's tale
what is funny about the summoner's tale
asked by jaz 
physics
what is the difference between high octane and regular gasoline
asked by Doly V 
science
1. What is Malathion? 2. What are hazard identifications of Malathion? 3. What is Malathion doseexposure? 4. What are risk characterization for Malathion?
asked by Lori 
chemistry
When combined with cupric ions (aq, 1M) which will produce the largest standard cell voltage? a. ) KMnO4(aq) b. ) MnO2(s) c. ) MnCl2(aq) d. ) Mn(s) im guessing its Mn(s)...but i don't know if im right can someone plz help me? :(
asked by nigel s 
Algerbara
I am doing equations with Zero Product Rule and am stuck on two problems. 2y2 + 5y = 3 x2 = 3x
asked by Hannah 
Physics
A sphere submerged in water to the 93 o' clock position so that the top half is out of the water. A crate is positioned at the 12 o'clock position. It starts from rest and slides from left to right down to the water. At what angle (theta) does the crate
asked by John 
Physics
An ideal spring with a stiffness of 329 N/m is attached to a wall, and its other end is attached to a block that has a mass of 15.0 kg. The spring/block system is then stretched away from the spring's relaxed position until 57.0 J of mechanical energy is
asked by John 
Physics
A 46.5 kg block sits at rest on a frictionless, horizontal surface. It is connected horizontally, via a massless, ideal spring to a stationary wall. A force is then used to displace and hold the block in a new position (so that the spring is compressed).
asked by John 
Math
When an object can be shifted, say to the left or right, and still remains the same; this is an example of what time of symmetry
asked by Randi 
Math
If the doubling time of a state's population is 42 years, how long does it take for the population to increase by a factor of 16?
asked by Randi 
physics
what can we learn from an analysis of a stellar spectrum?
asked by Doly V 
EnglishWriting
In citing work in an essay from a textbook in MLA format do you: use the textbook name and then the page number or do you use the publishers name with the page number?
asked by Sue 
Math
Suppose a quantity is halvd every 18 years. use the approximate halflife formula to estimate its decay rate. is the half life equation y= 1/2^t1/2 2^1/2t= 1/y t 1/2= log2 (1/y) Where do I put 18 at?
asked by Randi 
physic 1010 university level
Estimate the force of attraction between a 50.0 kg woman and a 70.0 kg man sitting 2.00 m apart.
asked by emili 
math
3/4/1/8
asked by whit 
physic 1010 first year university
Planet Z is 9000 km in diameter. The freefall acceleration on Planet Z is 10.0 m/s^2.What is the mass of Planet Z?
asked by elona 
physics
A crate starts from rest at the top of a large, frictionless spherical surface, and slides into the water below. At what angle, θ, does the crate leave the surface?
asked by Kaitlyn 
Physics
Thank you so much bobpursley for all your help. I actually think I'm beginning to understand, physics involves a lot of what I've learned so far, Newton's laws, mass, acceleration, etc... I just have to make connections. “A Honda Civic and Lincoln Town
asked by Hannah 
HCA 210
What are some of the longterm facilities in your community or state? Are there any essential services missing? If yes, what are they? If no, what services might be improved on? What other health care services are offered in your community or state that
asked by Sue 
Math
Suppose that a country's population is 64 million and its population growth rate is 3.7% per year. If the population growth follows a logistic growth model with r=.053, what is the country's carrying capacity?
asked by Taylor 
chemistry
how many atoms of CA is found in the mineral Hydroxyapatite( Ca5OH(PO4)3 How many atoms of H is found in the mineral Hydroxyapatite, How many atom of O in Hydroxyapatite, How many atom sof P, and has a molar mass mass of___________?
asked by stephanie 
college
Which of the following choices is a solution for: (3i)x1 + (12i)x2 = 0 (79i)x1 + (74i)x2 = 0 for any value of the variable t [x1] = ? [x2] A: [5] [1+7i] * t B: [5] [17i] * t C: [5] [17i] * t D: [5] [1+7i] * t This is linear algebra by the way;
asked by Michael 
Literature
El Olvido: It is a dangerous thing to forget the climate of your birthplace, to choke out the voices of dead relatives when in dreams they call you by your secret name. It is dangerous to spurn the clothes you were born to wear for the sake of fashion;
asked by mysterychicken 
science ( soda can)
Why does a can of soda left in the car on a hot summer day explode? Why does a can of soda left in the freezer eplode?
asked by Lou 
PSYCHOLOGY am i correct
The following table describes five situations in which a person reacts to stress in an unhealthy manner. For each: a. identify the stressor(s). b. briefly explain why the person's reaction is an unhealthy choice. c. briefly describe one healthy alternative
asked by scooby 
accounting
compute for the unknown please help me, i really don't underdstand this CASE A cost of goods manufactured 15,000 cost of good sold 25,000 finished goods invty. jan 1 22,500 finished good invty. dec 31 ? thank you
asked by Like Roses 
Math word problem
Alonso can't decide which size pizza to order. The 10inch cheese and sausage pizza is $7.99, while the 12inch deluxe is $8.99. The dimensions given are the diameters of the pizzas. If he gets the 10inch pizza, the total price will be divided among 3
asked by Lyndse 
Science
Nitrogen fixation is carried out primarily by humans by... A. Humans. B. Plants. C. Bacteria. D. Consumers.
asked by Kaled 
Science
Which one of the following best describe a eutrophic lake? A. algae bloom, low oxygen levels, high diversity of species. B. algae bloom, high diversity of species. low oxygen levels, C. algae bloom, low oxygen levels, high diversity of species. D. algae
asked by Kaled 
physics
An 8.56 kg block of ice at 0 degrees celsius is sliding on a rough horizontal icehouse floor (also at 0 degrees celsius) at 15.6 m/s. Assume that half of any heat generated goes into the floor and the rest goes into the ice. How much ice (in kg) has melted
asked by AE 
Science
Which of the following is an example of bioamplification? A. Too many herbivores in an ecosystem, due to loss of predators. B. An oil spill that destroys all marine life. C. An excess of nitrogen which causes algal cloom on the water's surface. D. High
asked by Kaled 
Science
Some possible properties of modern insecticides are listed below, When these insecticides are used which property helps to keep environmental pollution at the lowest level? A. Accumulation in the bodies of predators. B. Quiqly broken down by bacteria. C.
asked by Kaled 
Science
With which of the following is the study of an ecosystem Most concered? A. Determining population changes in the area being investigated. B. Making measurements of regional variaties in temperature, wind velocity, and precipitation. C. Analyzing the
asked by Kaled 
English Essay
Hi, this is my first paragraph to my essay on Hamlet. Please provide any feedback. Hamlet, a tragedy by Shakespeare, follows a downward spiral of the kingdom of Denmark. King Claudius plants a seed of corruption that initiates this spiral. Both simile and
asked by Anonymous 
Algebra 1A
Translate Two dollars plus four cents times the number of minutes in part into a symbolic rule. Use c to represent the total monthly cost and n to represent the total number of longdistance minutes for the month.
asked by Mike 
Algebra 1A
Translate Two dollars plus four cents times the number of minutes in part into a symbolic rule. Use c to represent the total monthly cost and n to represent the total number of longdistance minutes for the month, and then Determine the monthly cost if 250
asked by Mike 
hca 270
i have to do this and i have no idea im so confused i know to define but what is a real world example. and what are the fouec's and five pillars? im confused a little hint of help please The Four C’s and Five Pillars Directions: Consult Ch. 1 and the
asked by sammy 
chilcare
Barry seems to do things without thinking. He has a great deal of trouble waiting for things , and he frequently leaves his small group and interrupts other . Which exceptionality most closely resembles Barry's behavior? A Rett's disorder B Autism C
asked by Rosa 
Linear Algebra
I previously posted this question under the wrong topic. Which of the following choices is a solution for: (3i)x1 + (12i)x2 = 0 (79i)x1 + (74i)x2 = 0 for any value of the variable t [x1] = ? [x2] A: [5] [1+7i] * t B: [5] [17i] * t C: [5] [17i] * t
asked by Michael 
math
how would you solve these problem using distributive property question #1 5(45+5)=5(_____) question#2 9(42)9(4)=9(30)+9(______) I need this before Sunday December 6,2009
asked by Anonymous 
Science
Some possible properties of modern insecticides are listed below, When these insecticides are used which property helps to keep environmental pollution at the lowest level? A. Accumulation in the bodies of predators. B. Quiqly broken down by bacteria. C.
asked by Kaled 
Math
In one three day weekend, the daily high temperature had a median value of 73. The mean temperature was 74.33 and the range of temperatures was 14. What were the three weekend daily high temperatures?
asked by Todd 
chilcare
when properly executed, the behavior management strategy known as a timeout becomes A a positive reinforcer. B more effective than logical consequences. C a conversation between child and adult. D suitable punishment for misbehavior. The correct answer is
asked by Rosa 
Algebra
I need help to see if I did these steps and problems right before I hand this in…I am stuck, and cannot figure out question three part b and H…I just need help with the proper function of b and h part. 1. An anthropologist drives a car at a speed of 30
asked by Holly 
aed 200
an outline of your educational debate persuasive paper on are uniforms a good way to improve student discipline and motivation
asked by kisha 
Creative Writing
Using the multistep Process Writing method, write a (minimum) 500word essay or short story, or a fivestanza poem using Cause and Effect. If the poem is free verse (nonrhyming), it must be at least 400 words long. (You may also incorporate other methods
asked by y912f 
child care
when properly executed, the bahavior management strategy known as a timeout becomes A a positive reinforcer. B more effective than logical consequences. C a conversation between child and adult. D suitable punishment for misbehavior. The correct answer is
asked by Rosa 
Math
If u have a hundred points and split it into 4 . But you cant use a number more than once. What numbers would you use.
asked by Lexi 
Math
Suppose that a country's population is 64 million and its population growth rate is 3.7% per year. If the population growth follows a logistic growth model with r=.053, what is the country;s carrying capacity? How do I solve this problem... or at least
asked by Taylor 
Organic Chemistry
what is meant by "resolving" an enantiomer pair? what are some ways in which it can be done?
asked by Cerise 
economics
The table shows the relationship for a hypothetical firm between its advertising expenditures and the quantity of its output that it expects it can sell at a fixed price of $5 per unit.
asked by Anonymous 
hca 270
hey yea i posted earlier and i havent responded can some one please hel[p im confused and am cutting close on assinment because ive got things going on and mixed up can someone please help this is due tonite help
asked by sammy urgent please help 
Reading
Aww man~ Why do you peeps always link me to reading alot??? It is too boring! Just tell me which one is it.
asked by Kaled 
math
how do you do arrays and an expanded algorithm? 23x17?
asked by jhedrione 
algebra
36 Upstream, downstream. Junior’s boat will go 15 miles per hour in still water. If he can go 12 miles downstream in the same amount of time as it takes to go 9 miles upstream, then what is the speed of the current?
asked by Linda 
Physics
In attempting to pass the puck to a teammate, a hockey player gives it an initial speed of 2.0m/s, but because of the kinetic friction between the puck and the ice, the puck travels only half the distance between the players before coming to rest. Assuming
asked by John 
Physics
One end of a thin uniform rod, 1.00m in length, is attached to a pivot. The rod is free to rotate about the pivot without friction or air resistance. Initially, it is hanging straight down (the "6 o' clock position). Then the lower tip is given an initial
asked by John 
Science
In a field having an area of 3.0 ha is a colony of ground squirrels with 90 members. What is the density of the ground squirrel population? A. 90 ground squirrels. B. 270 ground squirrels/ha. C. 30 ground squirrels/ha. D. 0.030 ground squirrels/ha.
asked by Kaled 
Set theory
For any given integral domain, state the law of trichotomy, and show that in an integral domain D, the square of nonzero elements are positive
asked by Genius